Aeroplane.



i. M. DEITRICH.

AEROPLANE APPLICATION mfc SEPT. 11, 191s.

Lll. .Patented 00u19, im

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/1 TTOHNE Y 8 JoHN M Dammen, or narran CREEK, Mrcmcain.

AERDPLANE.

Specication of Letters Patent. v

\ latented et. 19,191 5.

-Application filed September 17, 1913. rial No. 790,188.'

To all whom t may concern: l

Be it known that I, JOHN M. Dnrrnrcrr, a

citizen of the United States, and a resident sustaining plane in theform of a curve and soplace the various parts of, the device that theweight 'is symmetrically disposed about the center of gravity.' v

A further object of my 'invention/is to lprovide means forv propellingthe 'device in which` the propellers are located at both the front andthe rear thus exerting a push and a pull.

Other objects and advantages will appear in the following specificationand the novel features of the device will be particularly pointed out inthe appended claim.

Myinvention is illustrated in the accompanying'drawings forming part ofthis application in whichl Figure 1 is a side view of the device, Fig. 2is a bottom plan-view, and Fig. 3 is a section along the'line 33 of Fig.l.

Incarrying out my'invention I provide a maln frame consisting of thelongitudinal and braces 4. At the end of the cross mem-- members l, theuprights 2, cross members 3,

` ably of a board 6 which is secured tothe cross members 3 between theuprights 2.v At ythe top of theuprights 2 is the main sustaining plane7. This-plane, as will be seen from Figs. l and Sis curved and isinclined downwardly from the front to the rear. a

Carriedupon the bottom 6 are two motors and 9, the motor 8 beingconnectedI by means ofthe chain'y 10 with a 'shaft 11 upon which therear propeller l2' is disposed. The motorv 9 is connected by means' of achain l13 with a shaft 14 upon which thel front pro-` i pellerlisdisposed. In the rear of the rear propeller 12 is the horizontalelevating plane 16, the rudder 17 being disposed in the rear of theelevating plane. The rudder' and the elevating plane Aare'manipulated bymeans of flexible cords 18 and 19 respectively.

Various parts of the machine such as the motors 8 and 9, propellers,elevating planes, rudder,fwheels,etc., are disposed symmetrically aboutthe center of gravity of the device.

From the foregoing description of the various parts of the device theoperation thereof may be readily understood. 'The provision of the twoengines causes a push and a, pull to be given to the machine. It' oneengine is out ot' commission the other caribe used to propel the device.It will be observed-.that the plane 7 is ldisposed longitudinally of themachine and therein it differs from other aeroplanes. The curved form ofthe. planes 7 makes of the latter a arachute so that if for anv reasonit is desired to descend the device will settle easily to the groundwhile maintaining its horizontal position. The upward inclination oi:

the plane .7 tends to cause an upward lift when the device is propelledforwardly.

iI claim:

In an aeroplane, a main trame. a main sustaining plane carried by' saidmaint une and extending longitudinally oi saidir. n f

frame, said main sustaining plane being curved laterally and beinginclined Jfrom its rear edge to its front edge, a bottom sup: portcarried byV said frame, a pair of motors carried by said bottom support,a pair of propellers, one of said propel'lers being disposed in the rearof said sustaining plane and being driven by one of said motors, and

`the other propeller being dis osed in front of' said main sustainingplane and being driven by the other motor, an elevating plane in therear of one of said propellers, a rudder in the rear of the elevatingplane, said motors, Propellers, elevating pla-ne, and rudder beino'disposed symmetrically about the center o gravity of the-device.

v IJOHN M. DEITRICH.

Witnesses: y

ARTHUR R. BROWNs C., `W. WHEELER.

opies of'thh patent may be obtained tuoi'jve cents` each,By'addressingthe Commissioner of Patents,

' Washington-1 9. 0. A

